Bournonite
Unknown Owner
Help improve this recordNo owner is registered for this specimen yet. If it's yours or you know more about it, you can add the owner, provenance, publications and other details.
Lustrous crystal of Bournonite with very well defined faces and edges and displaying the classic cogwheel shape. On matrix with small crystals of Pyrite. The piece is in excellent condition and shows a great aesthetic. A very good quality Bournonite miniature specimen with nice twinning. Watch video.
Product details
SpeciesBournonite
SizeMiniature
Dimensions2.0 x 3.0 cm
Added on06/16/2025
LocalityBolivia, Potosí, Machacamarca mining district
Known provenance
| Date | Collector | Acquisition price |
|---|---|---|
| 08/2026 | Unknown Owner | Not disclosed |
| — | MChMinerals | Not disclosed |
Learn more
Mineral guide
Learn about Bournonite
steel-gray to black sulfosalt famed for cogwheel twinning and metallic luster; prized by collectors for iconic gears and historic localities.Regional guide
Comments